Hey Beanz,
You've made some good points here. One way you could deal with the emails is to set up your inbox to filter them and put them in a specific folder (this is possible with Gmail / Hotmail and many other email services). We will also look into other avenues for our users other than email.
We made this tool to give members of the Steem community a way to better appreciate their fans and loyal followers. We also made sure to offer a free version which includes the ability to see the last 3 mentions received and made.
The premium service currently stores 14 days worth of mentions so there is a noticeable cost to run it, also the time spent by our developers. BuildTeam is a dedicated group of people who want to create new blockchain tools that benefit community members but developers need to be incentivised to remain on Steem and build cool stuff, in order to bring these tools to the masses we need to make sure they receive a fair wage for their contributions. Please understand that we have no whale funding like busy.org does for example and the profits that are made on premium services get used to sustain the development of all other projects we are working on and dreaming about.Thanks for your valuable contributions to the Steem community.
Have a great upcoming weekend!